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Originally Posted by crazyj
That is funny as hell... My co-wroker, who sits next to me, is a 27 year old guy who drives a 2005 BMW 330i and is completely clueless when it comes to car stuff. I asked him once if the exaust manifold goes in the front of his car or in the back... He said it goes in the back! LOL... Also he thinks his tires are run flat even after they are completely flat/out of air and the rim is sitting on the pavement!!!! Poor BMW....
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Actually a lot of BMWs come with run-flat tires now instead of having a spare tire. MINI Cooper S's do too. I'm not sure if the 330i does but I know quite a few of them do.
They're special tires that have reinforced sidewalls so that, even if there is absolutely no air in the tire, it can still be driven on and won't damage the rim. There are restrictions on them of course - no speeds over 50mph and a maximum driving distance of ~80 miles. And once you've done that, the tire is dead and MUST be replaced. But they'll get you to a service station or tire dealer without having to put on a spare.
Head over to TireRack and search for runflat tires. You'll find they're becoming more common.